A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6135-01-450-1269
NSN 5925-01-441-1841
NSN 5925-01-395-4930
NSN 6135-00-883-9024
NSN 6610-01-356-3435
NSN 5925-00-062-3744
NSN 2925-01-123-5856
NSN 2925-01-411-4666
NSN 7035-01-042-0527
NSN 6610-00-186-9180
NSN 5835-01-442-6482
NSN 6240-01-057-5822